JEE Main 2022 · 25 Jul · Shift 1 · Physics Q42

PhysicsSingle correct+4 / -1Question 42 of 90

To increase the resonant frequency in series LCR circuit,

source frequency should be increased.

another resistance should be added in series with the first resistance.

another capacitor should be added in series with the first capacitor.

the source frequency should be decreased.

Answer and worked solution

Official answer: C

$f_0=\frac1{2\pi\sqrt{LC}}$ . A capacitor in series lowers C and raises $f_0$ .

(C)

Topics:LCR circuits and resonance

JEE Main 2022 · 25 Jul · Shift 1, Physics question 42